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Salsk061 [2.6K]

3 years ago

10

You and four friends plan a surprise party. Each of you contributes the same amount of money m for food. Write an algebraic expr

ession for the total amount of money contributed for food.

1 answer:

professor190 [17]3 years ago

8 0

Answer:

y=x/4

Step-by-step explanation:

i don't know if this is right but i hope this helps :)

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evablogger [386]

Answer:

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3 years ago

I need to find out how long it takes him to hit the water

bearhunter [10]

Answer:

1.26

Step-by-step explanation:

When he hits the water, the height will be 0. Substitute h=0.

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Solve using the quadratic equation.

$x = \frac{-b+/-\sqrt{b^2-4ac} }{2a}$

Substitute a = -16, b=2, and c=23.

$x = \frac{-b+/-\sqrt{b^2-4ac} }{2a}\\\\x = \frac{-2+/-\sqrt{(-2)^2-4(-16)(23)} }{2(-16)}\\\\x = \frac{-2+/-\sqrt{4+1472} }{-32}\\\\x = \frac{-2+/-\sqrt{1476} }{-32}\\x = \frac{-2+/-38.4}{-32}\\x = \frac{-2+38.4}{-32}=\frac{36.6}{-32}=-1.14\\or\\x = \frac{-2-38.4}{-32}=\frac{-40.4}{-32}=1.26$

Since time in seconds must be positive then 1.26 is the solution.

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4 years ago

Which is an equation of the line that passes through the point (8,7) and is perpendicular to the line whose equation is y = 4x-1

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Answer:

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Step-by-step explanation:

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